Lithium Chloride → N-{4-[5-(1-Allyl-1H-imidazol-2-yl)-4-(2,4-dichlorophenyl)-1,3-thiazol-2-yl]pyridin-2-yl}acetamide

HRID 2282292Notes

Reaction equation

HRID 2282292 reaction equation
[CH2:1]([N:4]1[CH:8]=[CH:7][N:6]=[C:5]1[C:9]1[S:13][C:12](Br)=[N:11][C:10]=1[C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=1[Cl:22])[CH:2]=[CH2:3].C[Sn](C)(C)[C:25]1[CH:30]=[CH:29][N:28]=[C:27]([NH:31][C:32](=[O:34])[CH3:33])[CH:26]=1.[Cl-].[Li+]>O1CCOCC1.[Cu]I.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([N:4]1[CH:8]=[CH:7][N:6]=[C:5]1[C:9]1[S:13][C:12]([C:25]2[CH:30]=[CH:29][N:28]=[C:27]([NH:31][C:32](=[O:34])[CH3:33])[CH:26]=2)=[N:11][C:10]=1[C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=1[Cl:22])[CH:2]=[CH2:3]

Participants

7

Reactant 3

HCID 433294Lithium ChlorideHCID 580948585-(1-Allyl-1H-imidazol-2-yl)-2-bromo-4-(2,4-dichlorophenyl)-1,3-thiazoleHCID 59529632N-(4-(trimethylstannyl)pyridin-2-yl)acetamide

Product 1

HCID 58094968N-{4-[5-(1-Allyl-1H-imidazol-2-yl)-4-(2,4-dichlorophenyl)-1,3-thiazol-2-yl]pyridin-2-yl}acetamideYield 43.2%

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
115 °C

Procedure

To a solution of 5-(1-Allyl-1H-imidazol-2-yl)-2-bromo-4-(2,4-dichlorophenyl)-1,3-thiazole (0.133 g, 0.320 mmol) in 1,4-dioxane (8 mL) was added N-[4-(trimethylstannyl)pyridine-2-yl]acetamide (0.115 g, 0.384 mmol), lithium chloride (0.0407 g, 0.961 mmol), copper (I) iodide (0.0183 g, 0.0961 mmol) and tetrakis(triphenylphosphine)palladium(0) (0.0185 g, 0.0160 mmol). The flask was purged with argon and then the mixture was heated at 115° C. for 3 hours. The reaction was allowed to cool to room temperature, and then the solvent was evaporated in vacuo. Column chromatography was performed to yield the title compound (0.0650 g, 43%). LCMS: (FA) ES+, 472, 474. 1H NMR (400 MHz, d4-Methanol) δ: 8.75-8.72 (m, 1H), 8.45-8.41 (m, 1H), 7.71-7.68 (m, 1H), 7.58-7.55 (m, 1H), 7.43-7.35 (m, 2H), 7.20 (d, J=1.51 Hz, 1H), 7.14 (d, J=1.51 Hz, 1H), 5.69-5.58 (m, 1H), 5.13-5.08 (m, 1H), 4.94-4.88 (m, 1H), 4.38-4.33 (m, 2H), 2.20 (s, 3H).

Workup

  1. customThe flask was purged with argon
  2. temperatureto cool to room temperature
  3. customthe solvent was evaporated in vacuo

Sources & evidence

ORD record
ord-538c971935754a6696fb768944d45dee
Source dataset
uspto-grants-2015_09
Patent number
US09139589B2

Reaction notes

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